For applications on Google Play that integrate this tool, usage is tracked. This tracking is done automatically using the embedded version string (flatbuffer_version_string), and helps us continue to optimize it. Aside from consuming a few extra bytes in your application binary, it shouldn't affect your application at all. We use this information to let us know if FlatBuffers is useful and if we should continue to invest in it. Since this is open source, you are free to remove the version string but we would appreciate if you would leave it in.

Code Quality Rank: L1
Programming language: C++
License: Apache License 2.0
Tags: Serialization    
Latest version: v1.12.0

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FlatBuffers is a cross platform serialization library architected for maximum memory efficiency. It allows you to directly access serialized data without parsing/unpacking it first, while still having great forwards/backwards compatibility.

Go to our landing page to browse our documentation.

Supported operating systems

  • Windows
  • MacOS X
  • Linux
  • Android
  • And any others with a recent C++ compiler.

Supported programming languages

  • C++
  • C#
  • C
  • Dart
  • Go
  • Java
  • JavaScript
  • Lobster
  • Lua
  • PHP
  • Python
  • Rust
  • Swift
  • TypeScript

and more in progress...


To contribute to this project, see CONTRIBUTING.


Please see our [Security Policy](SECURITY.md) for reporting vulnerabilities.


Flatbuffers is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.

*Note that all licence references and agreements mentioned in the FlatBuffers README section above are relevant to that project's source code only.